New Condition Secondary Air Ventilation Injection Pump Check Valve 2571075010 2571075011 2571075012

• How does a check valve work? A car's check valve is like a "one-way switch": When fluid (air/exhaust gas) flows forward, the pressure pushes open the internal valve flap/reed, letting the fluid pass through smoothly. Once the fluid tries to flow in reverse, the reverse pressure shoves the valve flap back to its sealing position, and the valve closes automatically to block the backflow — this prevents equipment damage, pressure surges, or exhaust gas abnormalities.   Features  • Automatic on-off, One-way conduction ,High adaptability Benefits   • Reduce the risk of damage to pipelines/engine components • No complex electrical control components and low failure rate • Aid in optimizing engine exhaust/intake efficiency   • O.E.M Replace:    2571075010 2571075011 2571075012 2571075013 2571075014 2571075015